Fix a bug in dohosts, found by Mac. I wasn't checking against pid and eid in the portmap table.
Fix a bug in dohosts, found by Mac. I wasn't checking against pid and
eid in the portmap table.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome